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nevsk [136]
3 years ago
8

i need to see work and answer so i can copy the work and answer plz make it clear to me plz help me plz i dont want to fail

Mathematics
2 answers:
kykrilka [37]3 years ago
6 0

(a) (i)  In first 4 minutes Mary's speed was 600 / 4 = 150 m / minute

    (ii)  in last 4 minutes her speed was (1000-600) / 4 = 400/4 = 100 m/min

(b) Marys average speed for the whole journey = 1000/8  = 125 m/min

(c) 200 m

(d) Peter arrived at school after 7 minutes . Mary took 8 minutes. Peter first.

(e) Where they met is given by where the 2  curves  intersect. That is at time 6.8 minutes and 880 m from Mary's home

(f) At t= 4 dsitance between then is 600 - 400 = 200 m


Read more on Brainly.com - brainly.com/question/9982685#readmore

jekas [21]3 years ago
3 0
(a) (i)  In first 4 minutes Mary's speed was 600 / 4 = 150 m / minute
     (ii)  in last 4 minutes her speed was (1000-600) / 4 = 400/4 = 100 m/min
(b) Marys average speed for the whole journey = 1000/8  = 125 m/min
(c) 200 m
(d) Peter arrived at school after 7 minutes . Mary took 8 minutes. Peter first.
(e) Where they met is given by where the 2  curves  intersect. That is at time 6.8 minutes and 880 m from Mary's home
(f) At t= 4 dsitance between then is 600 - 400 = 200 m
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